Mion is shown waking up from her slumber in the ruins, next to the firefly who’ll help her find a way out. Instead of controlling the young girl, players will control the firefly and she’ll always be right behind.

Designed by a member of the Disgaea team, Firefly’s Diary is an adventure game where you help Mion, a girl that wakes up alone in the year 9999. Instead of controlling Mion you play as fireflies that guide her through the world.